高中英语必修四unit2语法解析

没有比……更糟的 There is/was no point doing 做……无意义 注意： There is/was no need to do sth.
动名词与不定式做主语时的比较： 动名词表示的动作通常是一个习惯性的长期进行 的动作, 不定式则通常表示动作的一次性或短暂性。 e.g.
3. 在介词后接动名词作宾语 1) I insist on studying hard．
2) She was very interested in listening to this song. 注：下列短语中的to都是介词, 所以动词要 接-ing形式: devote to, pay attention to, lead to, look forward to, stick to等。
1. 动词-ing形式的构成: 是在动词末尾加-ing 形式构成, 因此叫动词的 -ing 形式。 如: do-doing, help-helping, ask-asking, etc. 否定形式: not+ -ing 构成 2. 动词-ing形式不能单独作谓语 如：I reading the book.(改错) I am reading the book. 3. 动词-ing形式由动词加-ing变化而成, 它同时具有名词和动词的特征, 在句中可以 作主语、宾语等。
2.用形式主语it，把真正的主语——动名词结构移置句 尾。但这种句子形式有一定的限制，作表语的只能 是某些形容词或少数名词，如useful，useless， good，fun；no use，worth等。如：
1)这个电影值得看。
Seeing this film is worthing. It’s worth seeing this film．
4. 我后悔没好好学习。
I regret பைடு நூலகம்ot studying hard.
5. 帮助别人就是帮助你自己。
Helping others is helping yourself.
Thank you!
Translation 1.学英语很有趣。
Studying English is very interesting.
2. 读这本书很有意义（meaningful）。
Reading this book is meaningful. 3. 我记得在哪里见过他。
I remember seeing her somewhere.
2) 和拉珍争辩是没有什么用的。
Arguing with Lazhen is no use. It is no use arguing with Lazhen.
3. 在there be no...结构中作主语, 这种结构的意思 相当于“It is impossible to do… ”。
There is no sense in doing 做……没有道理 There is/was no use doing 做……无意义 There is/was nothing worse than doing
Lead in:
Do you remember this question? (watch) a family of chimps wake up is our first activity of the day.
watching
Unit 2 Working the Land
Grammar:
V-ing做主语和宾语
Complete these sentences:
1. If you can keep ________(read) reading English newspapers, your English will be improved. to come 2. He has promised __________(come) to my birthday party. telling/to tell 3. I hate _________________(tell) lies! going 4. I will never forget __________(go) to Beijing with him last summer. to tell I forgot ________(tell) her the news; so she knew nothing about it.
我会记住写信给他的。 ．
I will not forget helping her． 我不会忘记曾经帮过她. I will not forget to help her． 我不会忘记要帮助她.
D. 意义各不相同 try to do (设法) try doing (试试) be used to doing 习惯于做某事 be used to do 被用来做某事 can’t help doing 禁不住做某事 can't help to do 不能帮助做某事 mean to do (打算, 有意要做) mean doing (意思是, 意味着
1）Teaching English is my job. 2）Finding ways to grow more rice has been his life goal. 3）To reach there on time is my task.
二、动名词用作宾语 动名词作宾语有两种情况。 1. 只能后接-ing作宾语的动词, 常见的有 avoid, consider, enjoy, keep, finish, suggest, dislike, delay, escape, cannot help, imagine, mind, miss, practise, give up,, risk, insist on, look forward,等。 例如：
高考链接
1. — Let’s have a rest． — Not now. I don’t want to stop D __________ yet．(MET 1985) A. study B. to study C. for studying D. studying
解析: stop studying 意为“停止学习”。
一．作主语. 动名词作主语时，句子有三 种形式： 1.动名词直接置于句首主语的位置上。 1) 对别人说谎是我们万万不能干的. Speaking lies to others is something we should never do． 2)学习新单词对我来说非常重要。 Learning new words is very important for me． 3)说比做容易。 is easier than doing. Talking
1）I can’t avoid making mistakes． 2）Have you enjoyed dancing? 3）People couldn’t help laughing foolish man．
2. 既可接-ing和to do作宾语的动词, 常见的有: begin, start, continue, like, love, prefer, by, mean, forget，remember, hate等。 A. 在 like, love, hate, prefer等动词之后， 用-ing或不定式意义上没有什么不同, 只是侧重 点有些不同, ing表示泛指的动作, to do表示具体的一次性动作。 B. 在 begin/start之后, 用动名词和不定式, 意义没 有什么不同, 尤其是当主语是人的时候。
2. — Let me tell you something about the journalists． — Don’t you remember ________ me B the story yesterday? (1999上海高考) A. told B. telling C. to tell D. to have told 解析: remember telling me 意为 “记得曾经告诉过我”。
C. 在动词forget, remember, regret之后, 用 动名词与不定式意义不同。
-ing 表示动作已经发生,
-to do 表示动作还没发生；
I remember giving him the letter．
我记得曾经写过信给他。
I’ll remember to give him the letter